ey
:

<

;

‘i

.
‘

to limit reentry to the sozthern and eastern islands of the atoll. This survey incicat:4 thet
radiccctive contamination extended north of a line from Pogallua to Pirasi. Sevoaudasy fvts-out
amounting to 2 mr/hr was experienced at Parry on the evening of
Day.
Lagoon water was moderately contaminated in the vicinity of the Bogallua-Teiteiripucchi
chain and cleared within two days.
Table 4,8 “=

: RADIATION SUMMARY IN

ROENTGENS PER HOUR

Island

uy

Eniwetok
Parry
Japian

0
0
0

Chinimi

0

Aniyaanii

,

?
>

0

0
0

Piiraai
Aaraanbiru

0.05
0.08

0.005
0,01

0,006
0.01

Biijiri

0.12

0.17
0.17
0,10

0.02
0.02
0,012

Aitsu

Yeiri

0.10

0,01

0.01

0.014

0.01

0,14

0.016

0,02

0.17

0.02

0.02

0,05
0.08

0.06
0.08

0.02
0.02
0.02

Bokonaarappu
Kirinian

0.17
0,35

6,02
0.04

Bogon

0.98

0.12
0.22
6.8
8.0
8.4

0.60
7.0
12
1.0

Ruchi
Bogombugo
Bogallua

8.0
3.9
2.2

0.80
0.44
0.26

0.36
0.36
0.28

Giriinien

0

0,42
0.70

?
60.0
70.0
75.0

0

0

0

Ribaioni

0

.

Mui

0

Pokon

Igurin
gu

4

0

0
0

°
‘

0
0
0

0

Rigili

‘

0

0

+2 days

0

Bogairikk
Teiteiripucchi
Cochiti
San Idefonso

‘

0
0
0

owe ee

0

Muzin
Engebi

'

+1 day*

Chinieero

Aomon
Eberiru
Rujoru

.

—_~—-

Runit

Rojoa

‘
-

Extrapolated
H+thbr

0.02
0,04

0.14

0

0

0

0

0

0

*Period preceded by heavy rainfall.

4

.

4.6.9

‘

The bulk of the samples analyzed by the radiation-analysis section of TU-7 were water
samples. The specific activities in microcuries per milliliter of approximately 675 lagoon- and

{
‘
s

Laboratory Data Summary

drinking-water samples were determined during the course of the operation. Lagoon sampling
was carried on to ensure that ships’ anchorages were not excessively contaminated. As the
operation progressed it became evident that excessively contaminated water could be observed

71

-

es

Select target paragraph3